QPainterZoom Class Reference
[Painter and Devices]

#include <QPainterZoom.h>

Inheritance diagram for QPainterZoom:

List of all members.

Public Member Functions
void	setFont (QFont)
void	setFontSize (double)
void	setFontFamily (int)
void	setTextAlign (int)
void	setFTFont (int)
	QPainterZoom (QPaintDevice *)
void	drawFTSymbol (int nglyph, float xpos, float ypos)
void	drawFTSymbolEnc (unsigned long code, float xpos, float ypos, int enc)
void	drawText (double, double, QString)
void	drawNoteLine (float xpos, float ypos, int height)
void	drawLine (double, double, double, double)
void	drawRect (QCoordsRect)
QCoordsRect	getBoundingBox (int nglyph)
void	setFTSize (int)
void	drawRect (double, double, double, double)
void	drawRect (int, int, int, int)
void	drawStemBar (double, double, double, double)
void	drawSlur (double, double, double, double, int)
void	drawBrace (double, double, double)
void	drawEllipse (float, float, float, float)
void	drawEllipse (int, int, int, int)
void	end ()
void	setZoom (ZoomFactor)
void	begin ()
void	setRes (int, int)
void	setPenColor (const QColor &)
void	setPen (const QColor &)
void	setPen (Qt::PenStyle)
void	setBrush (const QColor &)
void	setBrush (Qt::BrushStyle)
void	drawLine (int, int, int, int)

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Detailed Description

Tis class is a painter that can draw in a coordinate system. Coordinates are given in millimeter.

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Constructor & Destructor Documentation

QPainterZoom::QPainterZoom (  QPaintDevice *  w  )

Constructor of the painter zoom by default the resolution is initialized to 50x50 The text alignment is defaulted to Align Left

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Member Function Documentation

void QPainterZoom::begin (   )  [virtual]

Before we start drawing we have to call the begin instruction Implements Painter.

void QPainterZoom::drawBrace (  double  , double  , double  )  [virtual]

draws the brace at pos (x,y) of height h Implements Painter.

void QPainterZoom::drawEllipse (  int  xsrc, int  ysrc, int  w, int  h )

draws an ellipse

void QPainterZoom::drawEllipse (  float  , float  , float  , float  )  [virtual]

draws an ellipse {(x1,y1),(x2,y2)} Implements Painter.

void QPainterZoom::drawFTSymbol (  int  nglyph, float  xpos, float  ypos )  [virtual]

This draw a musical font symbol But there is a little shift in the use of the bitmap I'd better use the bearing of the font. Parameters: nglyph  the number of the glyph xpos  Implements Painter.

void QPainterZoom::drawFTSymbolEnc (  unsigned long  nglyph, float  xpos, float  ypos, int  enc )  [virtual]

This method draw a music symbol Parameters: nglyph  is the glyph number xpos  is the x position ypos  is the y position int  enc is the encoding used (Home assignement of encodings) * Ugly patch because stem does not start at the right position Implements Painter.

void QPainterZoom::drawLine (  double  , double  , double  , double  )  [virtual]

draws the line {(x1,y1),(x2,y2)} Implements Painter.

void QPainterZoom::drawNoteLine (  float  xpos, float  ypos, int  height )  [virtual]

Deprecated: Implements Painter.

void QPainterZoom::drawRect (  double  xsrc, double  ysrc, double  x2, double  y2 )  [virtual]

There we set the size of the pen for the zoom factor we shall not do that if the size of the pen is 0 So there should be a conditionnal statement. Parameters: x1  upper left corner x y1  upper left corner y x2  lower right corner x y2  lower right corner y The set Pen line is incorrect. It must take in account thet the X resolution can differ from the Y resolution so the pen maybe not a square we may remedy this by using the world transformation. Implements Painter.

void QPainterZoom::drawRect (  QCoordsRect  r  )

this is an override function

void QPainterZoom::drawSlur (  double  , double  , double  , double  , int  )  [virtual]

draws the brace tying {(x1,y1),(x2,y2)} of direction d Implements Painter.

void QPainterZoom::drawStemBar (  double  , double  , double  , double  )  [virtual]

draws the stem bar {(x1,y1),(x2,y2)} Implements Painter.

void QPainterZoom::drawText (  double  x, double  y, QString  label )  [virtual]

Draws text at (x,y) with the text label Parameters: x  y  label  Implements Painter.

void QPainterZoom::end (   )  [virtual]

Some painter require a end paint instruction Implements Painter.

QCoordsRect QPainterZoom::getBoundingBox (  int  nglyph  )  [virtual]

Returns: The bounding box of the glyph (Its a simple glyph) Implements Painter.

void QPainterZoom::setBrush (  Qt::BrushStyle  bs  )  [virtual]

Sets the brush to the param style Implements Painter.

void QPainterZoom::setBrush (  const QColor &  col  )  [virtual]

Set the brush - The brush is the fill of the rectangle or ellipse that we draw Implements Painter.

void QPainterZoom::setFont (  QFont   )  [virtual]

Function related to the main font Implements Painter.

void QPainterZoom::setFontFamily (  int  ffam  )  [virtual]

This sets the font family Implements Painter.

void QPainterZoom::setFontSize (  double  fs  )  [virtual]

This set the font size Implements Painter.

void QPainterZoom::setFTFont (  int  ftindex  )  [virtual]

This method set the current font Implements Painter.

void QPainterZoom::setFTSize (  int  s  )  [virtual]

Set the musical font size Implements Painter.

void QPainterZoom::setPen (  Qt::PenStyle   )  [virtual]

sets the pen Implements Painter.

void QPainterZoom::setPen (  const QColor &   )  [virtual]

sets the pen color Implements Painter.

void QPainterZoom::setPenColor (  const QColor &  c  )  [virtual]

Set the pen Color Implements Painter.

void QPainterZoom::setRes (  int  rx, int  ry )

This sets the resolution of the painter Parameters: rx  number of pixel per inch ry  number of pixel per inch

void QPainterZoom::setTextAlign (  int  i  )  [virtual]

Set the text alignmenent Parameters: i  can be ALIGN_LEFT, ALIGN_CENTER ALIGN_RIGHT Implements Painter.

void QPainterZoom::setZoom (  ZoomFactor  z  )

We assume that 65 is the default resolution for a screen But it is based on experience to match the resolution of the font and the resoltion of the painter

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The documentation for this class was generated from the following files:

• QPainterZoom.h
• QPainterZoom.cpp

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